1366 - Incorrect integer value: '' for column `mapshopatlogis`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '15e495a0de3ec9b80232e481b9eaf2c1', '3.137.187.233', '1713585742', '1713585742', '/index.php/language/en/cat/c30_Laender.html/page/2')

[XT SQL Error]